Stapler



FIG. 1 is a perspective view of a stapler showing my new design;

FIG. 2 is a right side elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a front elevational view;

FIG. 6 is a rear elevational view; and

FIG. 7 is a perspective view of the stapler in a closed condition. 

The ornamental design for a stapler, substantially as shown and described. 